MP4 is a common video format. Many videos published on the Internet usually embrace the MP4 format. Then, when you download an MP4 video without subtitles, what will you do next? The best way is to find subtitles in relative websites and then add them to your MP4 files. Here lists three subtitle editors and several subtitles. Keep reading.
Part 1. Add Subtitles to MP4 by Joyoshare Video Joiner
Joyoshare Video Joiner is a professional tool to combine SRT files to MP4 video. Except for that, Joyoshare also allows you to add subtitles to videos with other formats, like MOV, M4V, AVI, MPG, etc. Before merging SRT and MP4, you can cut the unwanted parts of the MP4 files. Also, if necessary, you can edit the video, like rotate or crop the screen picture, adjust the brightness, contrast, saturation or hue, add some video effects and frames, insert background music and watermark, and so on. After adding SRT files to MP4, then you can export it at 60X faster speed. Of course, you can also convert the MP4 file to any other popular video formats or extract the audios from it.
What makes Joyoshare outstanding from multiple subtitle editors:
- Add subtitles to MP4
- Support various subtitle formats, like SRT, ASS, SSA, IDX, SMI
- Use Joyoshare without any skills
- Offer 5 opportunities to use it before registering
- Without the company logo in the trial version
Steps to merge SRT and MP4 files:
Step 1: Import MP4 video to Joyoshare
After downloading and installing Joyoshare Video Joiner, run it. Then you can add MP4 files to Joyoshare with 2 ways: Drag and drop MP4 video to the left screen; Select from the local folder.

Step 2: Select one mode and the output format
There are two modes in Joyoshare: High-Speed mode & Encoding mode. Each has multiple formats. Here we choose the latter and pick MP4 as the output format.

Step 3: Trim needless parts of the MP4 file
Joyoshare Video Joiner has an inbuilt video cutter. You can easily cut some commercials or footage.

Step 4: Edit MP4 files before adding subtitles to MP4
In this step, you can edit MP4 as you like. You can adjust the rotation of the video, crop the video, and apply some video effects.

Step 5: Add SRT files to MP4
Click the File button and select the one SRT file. And then preview the MP4 video with subtitles.

Step 6: Start to export MP4 with subtitles
Click the Convert button on the left bottom, then your MP4 inserted subtitles will export at 60X faster speed.

Note: You can use Joyoshare Video Joiner to combine SRT files and MP4 on both Windows and Mac computers. But if you want to do that in the Linux system, then you should try HandBrake.
Part 2. Combine SRT Files to MP4 with HandBrake
HandBrake is another video editing tool for adding subtitles to MP4 video. What’s more, HandBrake converts video to a great variety of formats to a selection of modern. It is a free and open source. In addition, HandBrake supports multiple platforms, including Windows, Mac and Linux).

Steps to add subtitles to MP4:
Step 1: Open MP4 video in HandBrake
Step 2: Open SRT file in HandBrake (Click Subtitles->Tracks->Add External SRT)
Step 3: Select Burned-In For Open Captions
Step 4: Export the MP4 inserted subtitles in HandBrake
Note: Mac users can use the two software recommended above. The third video editor in the following part is only compatible with Windows computers, which is Windows Media Player
Part 3. Merge SRT and MP4 via Windows Media Player
Windows Media Player(WMP) is a program with the Microsoft Windows operating system. With WMP, you can play videos and audios and view pictures. Apart from being a media player, WMP has some additional functions, like adding subtitles to MP4.

Steps to combine subtitles and MP4:
Step 1: Rename the MP4 files and the subtitles with the same name and put them in the same folder
Step 2: Run Windows Media Player in the Library Mode
Step 3: In the top menu, click Play->Lyrics, captions, and subtitles -> “On if available“.
More Introduction: How to Download Subtitles for MP4 Videos
You download an MP4 video and you know the way to add subtitles to MP4. Then you may be confused that where you can find the subtitles. Don’t worry about that. You can download subtitles by the following websites: subscene, yifysubtitles, opensubtitles, moviesubtitles, divxsubtitles.
Tags: Add-subtitles-t O-mp4 Add-srt-file-to -mp4 Merge-srt-and-m P4